Stainless Steel Cat-Back Exhaust System

It boasts ISO9001:2000 certification and features TIG-welded CNC flanges and computerized mandrel bends for optimal airflow and zero restriction. The system includes 2.25-inch inlet and front piping, culminating in a 3.5-inch rolled muffler tip. It aims to reduce exhaust back pressure and ensure smooth gas flow, producing a deep, aggressive tone while enhancing engine output. According to dyno-proven results, this system can increase horsepower and low-end torque, leading to improved overall performance and a more powerful driving experience. This system is specifically engineered for the 2.2L L61 Ecotec DOHC Inline-4 (L4) engine in the 2005-2007 Chevrolet Cobalt and the 2007 Pontiac G5. It is not compatible with Cobalt SS models, which feature different engine configurations (2.0L Supercharged/Turbocharged or 2.4L).